Take-up stop-motion for looms.



No. 762,426. PAT ENTED JUNE 14, 1904.

A. M. MARGOUX.

TAKE-UP STOP MOTION FOR LOOMS.

AIfPLIfJATION FILED APR. 6. 1904.

no MODEL Patented June 14, 1904.

UNITED STATES PATENT OFFICE.

ALIDA n. nanooux, or llOPEDilLlC, mssacinrsn'r'rs. Assioxon To nnarnn eenraxv, or norEnALE, MASSACIilJSE'lTS, (carom:

TlON OF MAI NE.

TAKE-UP STGP-MOTlON FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 762,426, dated June 14, 1904.

Application filed April 6,1904- Serial No. 201,798.

To (all whom it may concern:

Be it known that I, Ann-a M. Hancoux. a 1 operate citizen of the United States, and a reside-ntof Hopedalc, county of \Vorcester, State of Massachusetts, have invented an Improvement in Take-Up Stop-Motions for Looms, of which racks 5,

the following description, in connection with '1 the accompanyingdrawings, is a specification, like characters on the drawings representing like parts.

This invention has for its objectthe prod uction of novel means for effecting automatically the stoppage of a loom by or through the take-up when the proper operation of the lat-' ter is interrupted, as by the winding of the cloth around the take-up or sand roll instead of on the cloth-roll. Sometimes the cloth-roll may stick in its bearings, or the cloth may cling to and wind upon the ake-up roll, and if this fault is not quickly detected'an'd the loom stopped the cloth will be damaged and parts of the loom are liable to be unduly strained or broken. In my present invention I have devised simple means whereby the occurrence of such a fault as described will cause the operation of a stopping instrumentality to at once and automatically stop the loom before any damage can be effected, and in the present embodinrent of my invention I have utilized a portion of the warp stop-motion of the loom to effect the desired result.

The novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a transverse sectional view of a portion of a loom equipped with a so-ealled steel harness and cooperating warp stopmotion with one embodiment of my invention in operative connection therewith and in normal condition. Fig. 2 is a detail showing a portion of the mechanism in position to effect loom stoppage, and Fig. 3 is a perspective detail of the means whereby the stop-motion is caused to operate upon the occurrence of a fault in the taking up of the cloth.

The thin flat metal heddles 1, which serve also as warp stop-motion-controlling detec- N0 model.)

feelers 2 to cowith and be arrested by tector released by failure of its warp-threml, the take-up or sand roll 3, the clotlrroll 4, rotatably mounted in hearings in the sliding tors, the normally vibrating be and are all of well-known construction and operate in usual manner familiar to those skilled in the art.

As shown in Fig. 1, the cloth passes from the fell forward over and around the take-up roll 8, thence over the guide-roll 1), and down to and around the cloth-roll, the cloth being wound thereon by or through surface friction with the take-up roll, the grzulually-increasing roll of cloth causing the racks 5 to descend in well-known manner. If the clothroll L should stick in its hearings or the cloth should for any other reason cling to and wind upon the take-up roll, the cloth would be damaged and parts of the loom would very probably be broken. To prevent such a contingency, I have herein provided an arresting device to cooperate with and arrest the feeler, of the warp-stop-motion mechanism if the cloth accumulates or winds upon the take-up roll.

An upright bracket 7 is attached to the sup port F for the rack 5 and has mounted in it an inwardly-extended rock-shaft 8, (clearly shown in Fig. 3 located just back guide-roll 5,) and a curved finger or controller 9 is secured to the rock. haft. The controller overhangs the said guide-roll, and its tip is I located close to the surface of the take-u p roll l l l 1 3 just above the cloth as it passes therefrom to the guide-roll. At its outer end the rockshaft has secured wit a depending detent 10, which is adapted to engage the upturned short arm 11 of an arresting device, shown as a bellcrank 11 12, fulcrumed at 13 on the bracket 7, the long arm 12 of said de ice extending rearwardly and overhanging the front one oi the two vibrating members or feelers 2, Fig. 1. The rear end of the arm 19. is downturned and preferably thickened, as at 1st, and when the loom is running properly the said portion 14: is held up out of the path of the. feeler by the detent 10, as clearly shown in Fi 1. At

a hOddle-deand the guide-roll (3 (see Fig. 1) may of the such time the weight of the arm 12 acts through the short the take-up roll and begins accumulate thereon, it enthe controller and lifts it, rocking the shaft 8 in the direction of arrow 16, Fig. 3, causing the detent to swing forward and wipe past the end of the arm 11, as in-Fig. 2, thereby releasing the arresting device, so that the downturned end 14 thereof to wind upon or gages the tip of drops into the path of and arrests the feeler 2 on its inward or feeling stroke. Such arrest of the feeler is made operative by intervemng means to release the shipper 17 from its usual notched belt or other device by or through which power is transmitted to the loom and the latter. is stopped. In order to insure the opera tion of the controller, its tip end may be roughened or provided with fine teeth, as 9 Fig. 2, to positively engage the cloth when bunched or wound on the take-up roll to thereby tilt or rock the controller, as has been de scribed. The feelers are vibrated in opposite directions by usual intermeshing segmentgears forming no part of myv invention, a spring R, Fig. 1, drawing 'the feelers inward on their inward stroke.

I brief the arrest of a feeler releases the shipper 17,

thus causes the operation of a stopping instrumentality, will be given.

Referring to. Fig. 1, a knock-off arm 1', adapted to engage the lower end of the shipper, is fast on a rock-shaft P, supported on the loom-frame and having a depending arm in pivotally connected with the lower end of a link K. The upper end of the latter is hooked at k to embrace the cam-shaft O and a short rock-shaft k" is mounted on the link, the rock-shaft having an arm Zr connected by a rod *k with an arm on one of the feeler rock-shafts f A follower k and a hunter k are rigidly attached to the rock-shaft k, the follower cooperating with a feeler-actuating-cam K fast on the shaft (1", said cam being a double-throw cam and acting through the follower and intermediate parts to effect the outward or non-feeling stroke of the feelers 2. The hunter 1' is'located in the path of oppositely-located tappets t and normally cam K will act,through the follower, to elevate the hunter and depress it without engagement by either tappet. WVhen, however, a feeler is arrested, the hunter remains in the path of and is engaged by a tappet and the link K will be moved longitudinally to turn the shaft lr and act,'through the knock-off arm 1', to release the shipper 17.: This mechanism is simple and effective and substantially that shown in United States Patent No. 744,910; other suitable mechanism of this general character may be employed, as it is immaterial to holding-plate to shift the description of the means whereby but any I my present invention how the normal vibration of the feeler is effected.

By reference to Fig. 1 it will be manifest i that the loom cannot be set in motion unless the arresting device is set or placed in normal 1 position, (shown in Fig. 1,)and to accomplish this it is only necessary to lift the long arm 12 and throw the short arm forward past and in front of the detent 11. Thereupon the weight of the device holds the detent against the stop 15 and the detent maintains the part 14: out of the path of the feeler. It is thus requisite that the take-up roll be clear and in proper condition before the loom can be startto its normal position if the cloth be bunched l or i My invention is not restricted to the construction and arrangementshown and described, as the same may be changed or modified in various particulars without departing from the spirit and scope of my invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a loom, take-up mechanism, including a take-up roll, means to effect the operation of a stopping instrumentality, said means ii'ieluding a normally vibrating feeler, and a device rendered operative by or through winding of the cloth upon the take-up roll to arrest the feeler and thereby render said means active to cause stoppage of the loom.

2. In a loom, take-up mechanism, including a take-up roll, means to effect the operation of a stepping instrumentality, said means inl eluding a normally vibrating feeler, an ar- 1 resting device, and means to normally maintain said device out of the feeler path, said 1' means permitting the arresting device to en j gage and arrest the feeler by or through accumulation of cloth upon the take-up roll, to thereby effect the operation of the stopping instrumentality.

3. In a loom, take-up mechanism, means operative upon failure of a warpthread to effeet the operation of a stopping instrumentality, and a device to cause the actuation of said means upon the occurrence of a fault in the operation of the take-up mechanism.

In a loom, take-up mechanism,,including a take-up roll, warp-stop-motion mechanism, including a shipper, a normally vibrating l feeler, and means to release the shipper upon arrest of the feeler, combined with independent feeler-arresting means rendered operative by or through accumulation of cloth upon the take-u p roll.

5. In a loom, take-up mechanism, including i a take-up roll, warp-stop-motion mechanism, including a shipper, stop-motion-controlling detectors, and a feeler adapted to cooperate with and be arrested by a detector released by failure of its warp-thread, and means to release the shipper upon arrest of the feeler,

combined with a normally inoperative feelerarresting device rendered operative by or through winding of the cloth upon the takeup roll.

6. In a loom, in combination, a shipper, means to release it, 'said means including a normally vibrating member, take-up mechanism including a take-up roll, an'arresting device to cooperate at times with and arrest said vibrating member, to thereby effect release of the shipper, and means to normally maintain said device inoperative and render it operative upon accumulation of cloth on the take-up roll.

7. In a loom, in combination, a shipper, means to release it, said means including a normally vibrating member, take-up mechanism including a take-up roll, an arresting de- Vice to cooperate at times with and arrest said vibrating member, to thereby effect release of the shipper, a detent to maintain said device inoperative, the detent and located adjacent the surface of thetake-up roll, accumulation of cloth thereand a controller connected withtent and release the arresting device toica its cooperation with; the vibrating member 8-. In aloom, in combination, means, includ ing a normally vibrating member,{toetf.ect the operation of a stopping instrumentality, take-up mechanism, including a take-up roll, a rocking finger adjacent thereto and having an attached detent, a stop for the latter, and an arresting device for said vibrating member, normally in engagement with the detent and thereby maintained inoperative, an accu-- mulation of cloth on the take-up roll acting to rock the controller and move the detent away from its stop to resting device and permit its cooperation with the vibrating member to arrest the same. In testimony whereof Ihave signed my name to this specification in the presence of two subscribing witnesses. LIDA M. MARCOUX.

Witnesses: Y

GEoReE OTIS DRAPER, ERNEST WARREN Wool).

thereby release the ar- 

